Power-transmitting mechanism for boats, &amp;c.



PATENTED JULY 5, 1904.

E. E. ANTHONY. POWER TRANSMITTING MECHANISM FOR BOATS, &0.

APPLICATION FILED SEPT. 22, 1903.

N0 MODEL.

2 SHEETS-SHEET l.

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APPLICATION FILED SEPT. 22. 1903.

2 SHEETS-SHEET 2.

N0 MODEL.

UNITED STATES Patented July 5, 1904.

PATENT OEEicE.

POWER-TRANSMITTING MECHANISM FOR BOATS, 800.

SPECIFICATION forming part of Letters Patent N 0. 764,331, dated July 5, 1904.

Application filed September 22, 1903. Serial No. 174,235. (No model.)

To all whom, it may concern.-

Be it known that I, ELLIOTT E. ANTHONY, a citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Power- Transmitting Mechanism for Boats, 850., of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in power-transmitting mechanism for boats, &c.; and it consists in the novel construction, combination, and arrangement of parts hereinafter shown, described, and claimed.

The object of my invention is to provide an improved power-transmitting mechanism for boats, &c., which shall be especially adapted for use in connection with small screw-propellers, drills, or in any machine wherein it is desired to rotate a shaft intermittently or continuously in a given direction.

A further object of my invention is to provide improved means for reversing the movement of the shaft and causing it to turn either intermittently or continuously in a reverse direction.

In terms my invention comprises a shaft rotatably mounted, two drums loosely mounted upon said shaft, right and left hand ratchets alternately connecting the drums to the shaft, means of switching the ratchets, two sectors pivotally mounted, and two ropes connected to each sector and crossed, extended over guides, wound upon the drums in opposite directions, and attached to the drums, so that as the sectors are worked back and forth a1- ternately the shaft is rotated, the direction of rotation being changeable by switching the ratchets.

In the drawings, Figure 1 is a sectional plan view of the power-transmitting mechanism embodying my invention. Fig. 2 is a side elevation of the same. 'Fig. 8 is a section on the line 3 3 of Fig. 1 looking in the direction indicated by the arrow. Fig. 4c is a detail View of one of the rocking sectors and its hand-lever with the ends of two operating ropes adjustably attached thereto. Fig. 5 is a longitudinal section of one of the ratchetdrums and its connections, parts being omitted. Fig. 6 is a section on the line 6 6 of Fig. 5, parts being omitted. Fig. 7 is a section on the line 7 7 of Fig. 5.

The shaft to be revolved is indicated by the numeral 1, and in the present instance it is mounted in suitable bearings 2, carried by a rectangular frame 3. The shaft is revolved. almost continuously in any given direction by means of the two ratchet-drums 4C and 5 and their connections now to be described. Said drums are loosely mounted upon said shaft at a suitable distance apart, with ratchet-wheels 6 and 7 fixed upon said shaft at the ends of said drums. Said ratchet wheels may be secured to said shaft by pins 8, passing through said wheels and shaft, or any other known means of fastening, such as keys, may be used for this purpose. It will thus be seen that each drum is provided with two ratchetwheels 6 and 7, the teeth of which wheels project in opposite directions. Each ratchetwheel is provided with a pawl 9, which is mounted upon a pin 10, so that said pawls are securely connected to their drum. in other words, each druni has right and left hand ratchets. Said ratchet-wheels and pawls are mounted within casings 11 upon the ends of the drums. Said casings, of course, rotate with the drums. The pawls 9 are held in contact with the teeth of the ratchet-wheels by means of suitable springs 12. Pins 13 project from said pawls and extend through slots 14 in the end walls of the casings 11, as shown in Fig. 7.

For controlling the pawls at the ends of the drums I provide conical cams 15, which are loosely mounted upon the said shaft 1 and adapted to be moved axially thereon by means of forked arms 16, the prongs 17 of which are mounted in a peripheral groove 18, formed in said cams.

All four of the forked arms 16 are fixed upon ashaft 19, which extends parallel to the shaft 1 alongside of said drums, and said, shaft 19 is mounted to move axially in suitable bearings 20 and is provided with a proper handle 21, by means of which the said shaft may be thrown to the desired position for the purpose of causing certain of the conical earns 15 to engage certain ones of the pins 13 and to disengage certain others of said pins. This is the mechanism for switching the ratchets to change thedirection of the shaft. eral grooves 22 for the reception of ropes, which are wound upon the drums in the manner hereinafter described. In the present instance I make use of four ropes. numbered, respectively, 23, 24. 25, and 26. One end of the ropes 23 and 24 is secured to the drum 4, and one end of the ropes 25 and 26 is secured to the drum 5. The ropes are secured to the drums near the ends of the latter by any suitable means; but in the presentcase I make use of screws or bolts 27. which extend through the ends of the drums and engage the ends of the ropes and securely clamp same within the rope-sockets 28. (See Fig. 5.) Said bolts 27, in connection with the previously-mentioned pin 10, also serve to hold the casings 11 in position. The ropes are wound a number of times around the said drums, beginning near the ends of the drums and extending to a point near the center of the length thereof, and after being so wound the ropes extend laterally and pass over pulleys 29 and thence extend to the rocking sectors 30, of which there are two, one being located upon one side of the frame 3 and the other on the opposite side thereof. The ropes engage the curved peripheries of the sectors and have their ends adjustably secured to the sectors by means of bolts or hooks 31, which are provided with nuts 32, by means of which the ropes may be tightened whenever required. In other words, two ropes are connected to each sector and crossed, then extended over the guide-pulleys, then around the drums in opposite directions and attached to the drums. Said sectors are provided with vertical hand-levers 33 in case the mechanism is to be operated by hand-power; but it is of course obvious that other forms of power may be applied to the hand-levers 33. Said sectors are pivotally mounted upon brackets 34 by means of a pivot 35, which passes through a bearing 36, formed in each sector at the base of the hand-lever 33. The ropes are arranged in pairs upon opposite sides of the frame, and the ropes constituting the pairs extend past each other upon aperiphery of the sector to which they are attached, so that when said sector is rocked one rope will be wound thereon while the other rope is unwound the like amount.

I provide two sectors and two hand-levers in order that there may be a lever for each of the operators hands, also for the purpose of applying power at shorter intervals. I desire to explain that the said sectors and hand-levers may be dlspensed with in some cases and the ropes constituting each pair of ropes may Said drum 4 is provided with periphhave their ends connected at the point corresponding to that beneath the sectors.

The operation is as follows: When it is desired to revolve the shaft 1 in the direction indicated by the arrow, the operator will first adjust the cam-shaft 19 so as to detach the proper pawls 9 from their ratchet-wheels and permit the pawls at the opposite ends of the drums to engage their ratchet-wheels in order to revolve said shaft 1. Such adjustment of the cam-shaft 19 is shown in Figs. 1 and 2. Then by moving the hand-lever 33, which is at the top of Fig. 1, toward the left-hand of said figure and simultaneously moving the other hand-lever 33 in an opposite direction the rope 23 will be unwound from the drum 4 and the rope 24 will be wound thereon, while the rope 25 will be unwound from the drum 5 and the rope 26 will be wound upon said drum 5. The drum 4 during such movement is whatI term the driving-drum, while the drum 5 is recovering. I term the drum 4 the driving-drum because its pawl 9 at the inner end of said drum is permitted to engage the teeth of its ratchet-wheel 7 by the withdrawal of the conical cam from its pin 13, while the pawl at the opposite end of said drum 4 is disengaged from its ratchet-wheel 6 because of contact of its conical cam 15 with its pin 13 in the manner hereinbefore described. The drum 5 during such time is rotated in an opposite direction from that of the drum 4 by the rope 25, and both pawls 9 of said drum 5 during such operation are therefore ineffective; but when the movement of said hand-levers 33 is reversed then the rope 26 will be unwound from its drum 5, and thereby rotate said drum in a corresponding direction and wind thereon the rope 25. Such movement will also cause the rope 24 to move the drum 4 in a reverse direction, and thereby unwind said rope from said drum and also wind the rope 23 thereon. The reverse movement of said drum 4 will be permitted by reason of one of its ratchet-wheels being retracted by its conical cam 15 and pin 13 and by its other ratchet riding the teeth of its ratchet-wheel. From this it will be seen that an alternating vibration of the hand-levers will impart an almost continuous movement to the shaft 1 in the direction indicated by the arrow.

When it is desired to reverse the motion of the shaft 1, all thatis necessary is to reverse the positions of the conical cams 15 at the ends of the drums, which, as before stated, can be done by moving the cam-shaft 19 by means of its handle 21. By reversing the position of the conical cams the pawls 9, which previously engaged their ratchet-wheels, will be detached therefrom, and those pawls which were previously retracted will be permitted to engage their ratchet-wheels, and as the teeth of the latter project in an opposite direction from that of the teeth at the opposite TIC ' ratchets to reverse the shaft; two sectors pivotally mounted; and two ropes connected to each sector, crossed, extended over guides, wound upon the drums in opposite directions and attached to the drums, so that as the sectors are worked back and forth alternately, the shaft is rotated, the direction of rotation being changeable by switching the ratchets, substantially as specified.

2. A power-transmitting mechanism, comprising a shaft rotatably mounted, two drums loosely mounted upon said shaft; right and left hand ratchets alternately connecting the drums to the shaft; conical cams loosely mounted upon the shaft; pins projecting from the ratchet-pawls to be engaged by said cams; means of operating the cams so that when the right-hand pawls are elevated, the left-hand pawls are depressed and control the shaft, and vice Versa; two sectors pivotally mounted; and two ropes connected to each sector, crossed, extended over guides, wound upon drums in opposite directions and attached to the drums; so that as the sectors are worked back and forth alternately, the shaft is rotated, the di rection of rotation being changeable by siwcitching the ratchets, substantially as speci- In testimony whereof I have signed my name 

